My thinking at the time was that if this oil can lube a High revving little motor, mixed with Gasoline at the lean Ratios they have these days, the it can lube my low tech Mazda and Jeep motors. And I knew it was of Low viscosity, Duh, and usually used it in the cooler mot=nths, to lessen the High Viscosity I usually ran in these motors, usually being HD30 or 40 weights.